Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat dem hoi snippets" » "nhat de hoi snippets", "nhat ve hoi snippets", "nhat le hoi snippets", "nhat dem toi snippets", "nhat dep hoi snippets", "nhat dam choi snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("nhat dem hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhat dem hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat dem hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat dem hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.